Single vs Dual Subs

2 Dual woofer push-pull subs. Dual element push-pull subs are smaller in size than single element subs

Somec59 said:

Dual element push-pull subs are smaller in size than single element subs

OK. Manufacturers?

Bob said:

For movies the LFE is a discrete channel, so why not take advantage of it?

Sure, the LFE is there. The question would be, "Since the LFE is mono, might one getter better 2-channel performance by keeping the L and R signals distinct?" The idea would be, to me, that the subs are just making the mains more full-range, while the LFE is combining all the LF into a single channel.

I do appreciate all the thoughts here. It's helping me think through my approach to this.

Lou

Lou,

I recently spent about 6 or 7 months researching subs; listening when I could and studying test results as well. My quick take:

1) Audyssey, SVS/Audyssey, Velodyne SMS allow parametric EQ below the x-over frequency. The benefit in seamless integration and smooth deep bass (i.e. "fixing your room")is amazing. If your pre/pre-pro/receiver doesn't have this feature, I'd budget $450 (Velo SMS) to $800 (SVS/Audyssey) to add it.

2) 2 subs have many benefits - at your budget, I'd definitely go that way.

3) I spent a LOT of time with the JLs. They are great subs, but expensive. The Hsu product looks good, but the SVS subs appear to be superior all around performers for similar $ (caveat: based on test results here -not listening sessions). I did a lot of research and picked the Rythmik subs (which are very satisfying in my music only system), but if I wanted dual use - music AND ht - I'd probably go with the SVS.

Good Luck,

Marty

BTW,

I suspect that any of the 12" models from Rythmik, SVS, or Hsu will be satisfying. The Rythmiks don't test as well below 35hz (as a practical matter, this is strictly HT territory), but they allow variable damping that's proven quite useful in system matching/fine tuning. In actual use, my pair of 12" subs reproduce 25hz test tones at high spl without breaking a sweat. They'd also go well below that if I adjusted the EQ and susonic filter to allow it.

As far as the LFE goes - try it both ways. Depending on your room and the main speakers in use (with the attendant selection of the best x-over point) it may, or may not, make a difference.

Marty